KeyID Provider

The key ID (kid) parameter is used to identify a unique key. This value allows identity providers such as WSO2 Identity Server to provide a simple name to identify their signing key, and then repeat that identifier in the tokens they issue. For more information on scenarios where the kid value is used, see WSO2 Identity Server documentation.

WSO2 Open Banking Accelerator provides the OBKeyIDProvider class, which is an extension point you can customize according to your requirements.

OBKeyIDProvider

To configure a kid calculation logic according to your open banking requirements, use the OBKeyIDProvider class.

com.wso2.openbanking.accelerator.identity.keyidprovider.OBKeyIDProvider;

getKeyId method

The method contains the KeyID calculation logic. You can customize it according to your requirements. Given below is the method signature:

public String getKeyId(Certificate certificate, JWSAlgorithm signatureAlgorithm, String tenantDomain) throws IdentityOAuth2Exception;

Configuring a kid value

To configure a kid value, follow these steps:

  1. Open the <IS_HOME>/repository/conf/deployment.toml file.

  2. Add the following to configure the kid value in signing certificates:

    [[open_banking.identity]]
signing_certificate_kid=”123”
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